Feet and Inches Length Measurement Calculator

Adding and subtracting inches and inch fractions is easy, simply enter your feet, inches, or metric calculations below, for example enter 6' 8 5/16" - 3ft + 8inch * 2 - 12cm. The calculator will convert fractions, calculate inches to cm, and will convert imperial to metric measurements automatically.

Calculating inches, inch fractions, feet and centimeters

Inches, Feet, and Centimeters Results


Imperial Units

0 Inches (fraction)
0 Inches
0 Feet

Metric Units

0 Millimeters
0 Centimeters
0 Meters

Feet and inches measurement calculator information

Calculate tape measure feet, inches, inch fractions, and centimeters or convert
  • Use the calculator to add, subtract, multiply, and divide imperial and metric measurements with as many values as you would like.
  • Type your calculation just like you would write it on a piece of paper.
  • Use inch and feet symbols, abbreviations, or singular or plural names.
  • Mix and match metric measurements and imperial measurements. Add or subtract inches, inch fractions, feet, yards, millimeters, centimeters, and meters in any combination.
  • Calculate length and get measurements in feet and inches, inches with fraction, inches as a decimal, millimeters, centimeters, and meters for easy conversion.
  • Round decimal feet and inches to the nearest inch fraction measurement and get the decimal measurement for the inch fraction.
  • Convert feet and inches to meters and centimeters and vice-versa. Convert many other measurements easily with our length unit conversion tool.

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